تاثیر پرایمینگ بذر و سطوح مختلف نیتروژن بر عملکرد و اجزای عملکرد گندم در شرق استان گلستان

نوع مقاله: مقاله پژوهشی

نویسنده

دانشگاه پیام نور واحد شاهرود

چکیده

یکی از عوامل دستیابی به عملکرد بالا در واحد سطح، سرعت و درصدجوانه­زنی بذرها و اسقرار گیاهچه­های حاصل از بذرهای کشت­شده است. پرایمینگ یکی از تکنیک­هایی است که می­تواند باعث افزایش درصد و سرعت جوانه­زنی و سبزشدن بذر گردد. بر این اساس در این آزمایش، عکس­العمل گندم به پرایمینگ و نیتروژن مورد ارزیابی قرار گرفت. به­منظور ارزیابی عکس­العمل ارقام گندم به پرایمینگ و نیتروژن این پژوهش به­صورت فاکتوریل در قالب طرح بلوک­های کامل تصادفی در 3 تکرار در مزرعه گل چشمه (استان گلستان) در سال 1394 اجرا شد. عامل پرایمینگ در پنج سطح، شامل نیترات پتاسیم (KNO3) با غلظت 2 درصد، سولفات روی (Znso4) با غلظت 03/0 درصد، کلریدپتاسیم  با غلظت 2 درصد،  پرایم با آب معمولی و بدون پرایم و عامل نیتروژن در 3 سطح و شامل مصرف 0، 75و 150 کیلوگرم در هکتار نیتروژن خالص از منبع اوره بود. اثرات ساده پرایمینگ و سطوح کود نیتروژنی بر عملکرد و اجزاء آن در سطح یک درصد معنی‌دار بود، میزان عملکرد و اجزاء آن با پرایم بذر با سولفات روی و با افزایش سطوح کود نتیروژنی افزایش یافت، به‌طوری‌که عملکرد دانه با پرایم از 64/4464 به 30/5830 کیلوگرم در هکتار افزایش یافت. هم­چنین عملکرددانه از 3810 گیلوگرم در هکتار در تیمار شاهد به 5642 کیلوگرم در هکتار در تیمار 150 کیلوگرم نیتروژن خالص رسید. اثر متقابل پرایمینگ و سطوح کود نیتروژنی بر هیچ ‌یک از صفات در هیچ‌کدام از کرت‌ها معنی‌دار نبود.

کلیدواژه‌ها


عنوان مقاله [English]

Effects of seed priming and Nitrogen different levels on yield and yield components of wheat in east of Golestan province

نویسنده [English]

  • Sedigheh Ghenaei
چکیده [English]

One of the parameters for obtaining high yield per unit area, is the of the rate and percent of germination and establishment of seedlings of planted seeds. Priming is one of the techniques that results in increased percent and rate of germination and emergence. To do this, response of wheat to priming and nitrogen were evaluated. In order to evaluate the response of wheat to seed priming and nitrogen  a factorial experiment was conducted arranged in an RCBD with three replications on Golcheshmeh farm (Golestan proviance) in 2015. seed priming at five levels i.e. (non-primed and primed seeds with (hydro priming, with 0.03% zinc sulfate, 2%potassium chloride (KCl) and 2% potassium nitrate (KNO3), and nitrogen as the second factor consisted of three levels: nitrogen fertilizer (from urea): 1- No nitrogen fertilizer, 2- 75 Kg.ha-1, 3- 150 Kg.ha-1, The effect of priming and nitrogen fertilizers on yield and its components were highly significant. Grain yield and its components increased with zinc sulphate priming and they increased with an increase in nitrogen level. Grain yield Increased from 4464.64 to 5830/30 kg ha-1 with priming with zinc sulfate. As well, Grain yield Increased from 3810 to 5642 kg ha-1 with Nitrogen fertilizer (150 Kg.ha-1) ).The effect of priming by nitrogen interaction was not significant on any of the traits.

کلیدواژه‌ها [English]

  • Grain yield
  • Nitrogeen
  • Priming and Wheat
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